Ultimate Physics Sandbox

A true 3D physics playground on a huge island, with a slightly pixelated, voxel-inspired look.

Machines with real parts. Drive a V8 pickup, a dune buggy, a tracked hydraulic excavator, a forklift with a lifting mast and a work boat with a real propeller, all with working suspension, gearboxes, moving pistons and fuel, coolant and oil that can leak. Over-rev the V8 on the test stand until it blows apart. Run the conveyor factory line with its stamping press and heat oven, swing a wrecking ball, run the hydraulic press, open refinery valves.

Materials that behave. Sand slides and piles up, gets dug into ruts and soaks up water. Rivers flow, fill basins and wash out sand dams. Lava creeps, crusts over, sets things on fire and turns to obsidian in water. Gasoline floats on water and burns. Fire spreads through grass, trees and fuel spills.

Everything has mass and temperature. Wood floats and burns to ash. Steel glows and melts. Glass and brick shatter. Sealed drums and gas cylinders build pressure until they go.

Your tools. Pour 22 materials, spawn dozens of objects, carry and throw, torch, blast, shovel, weld, tie and spring things together, and inspect the physics of anything you point at. Switch between first-person, third-person and free camera at any time. The Experiment Notebook gives you ideas when you want them.

Runs on more machines. The Settings menu lets you pick Low, Medium, High or Auto quality and set resolution, shadows and view distance, and play in full screen. Chromebooks and computers without WebGPU are supported.